24
QuizMultiple Choice
Unit Test — Unit test
Question 24 • Science 7 B (M12 25/26 S2)
The diagram shows the heart of a bird.
Answer
A
to keep oxygen-rich blood and oxygen-poor blood flowingB
to filter waste materials from oxygen-poor bloodC
to filter waste materials from oxygen-rich bloodD
to keep oxygen-rich blood and oxygen-poor blood separate